C111112111133131121133133313331333133313331323133313331331121111113313221323321   >>    C11111211113313112113313331333133313331333132313331333133112111111331322132332   <<    C111112111133131121133133313331333133313331323133313331331121111113313221323323   >>      C111112111133131121133133313331333133313331323133313331331121111113313221323322   >>